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Hallicystis
Taxonomy
Hallicystis was named by Jaekel (1899) [Sepkoski's age data: S Wenl S Ludl Sepkoski's reference number: 327]. It is not extant.
It was assigned to Apiocystitinae by Beaver et al. (1967); to Rhombifera by Sepkoski (2002); and to Callocystitidae by Paul and Rozhnov (2016).
It was assigned to Apiocystitinae by Beaver et al. (1967); to Rhombifera by Sepkoski (2002); and to Callocystitidae by Paul and Rozhnov (2016).
Synonymy list
| Year | Name and author |
|---|---|
| 1899 | Hallicystis Jaekel |
| 1967 | Hallicystis Beaver et al. p. S209 |
| 2002 | Hallicystis Sepkoski |
| 2016 | Hallicystis Paul and Rozhnov p. 266 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Hallicystis Jaekel 1899
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Wenlock or 433.40000 to 427.40000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wenlock | USA (Iowa) | H. sp. (25019) | |
| Wenlock - Ludlow | USA (Illinois) | H. elongata (26770) | |
| Wenlock - Silurian | USA (Wisconsin) | H. imago (13069) |